Home / 278,946.85-385,045.38-165,768.25

Finding the Fourth Proportional to 278,946.85, 385,045.38 and 165,768.25

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Solution

The fourth proportional to 278,946.85, 385,045.38 and 165,768.25 is: 228,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,946.85 : 385,045.38 = 165,768.25 : x
  2. Step 2: Convert to fraction form
    278,946.85/385,045.38 = 165,768.25/x
  3. Step 3: Cross multiply
    278,946.85x = 385,045.38 × 165,768.25
  4. Step 4: Simplify right side
    278,946.85x = 63,828,298,813.19
  5. Step 5: Solve for x
    x = 63,828,298,813.19/278,946.85
  6. Step 6: Final answer
    x = 228,818.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.